   direction. Transformations apply to everything that happens after
   and subsequent calls to the function accumulates the effect. For
   example, calling (rotate HALF-PI) and then (rotate HALF-PI) is the
-  same as (rotate PI). All tranformations are reset when draw begins
+  same as (rotate PI). All transformations are reset when draw begins
   again.
 
   Technically, rotate multiplies the current transformation matrix by

                                    inside functions provided to sketch (like
                                    draw, mouse-click, key-pressed and
                                    other). By default all exceptions thrown
                                    inside these functions are catched. This
                                    prevents sketch from breaking when bad
                                    function was provided and allows you to
                                    fix it and reload it on fly. You can

    :added "1.0"}
  specular
  "Sets the specular color of the materials used for shapes drawn to
  the screen, which sets the color of highlights. Specular refers to
  light which bounces off a surface in a preferred direction (rather
  than bouncing in all directions like a diffuse light). Used in
  combination with emissive, ambient, and shininess in setting
  the material properties of shapes."
